<template>
  <div class="sidebar">
    <el-menu class="sidebar-el-menu"
             :default-active="onRoutes"
             :collapse="collapse"
             background-color="#324157"
             text-color="#bfcbd9"
             active-text-color="#20a0ff"
             unique-opened
             router>
      <template v-for="item in items">
        <template v-if="item.subs">
          <el-submenu :index="item.index"
                      :key="item.index">
            <template slot="title">
              <i :class="item.icon"></i>
              <span slot="title">{{ item.title }}</span>
            </template>
            <template v-for="subItem in item.subs">
              <el-submenu v-if="subItem.subs"
                          :index="subItem.index"
                          :key="subItem.index">
                <template slot="title">{{ subItem.title }}</template>
                <el-menu-item v-for="(threeItem, i) in subItem.subs"
                              :key="i"
                              :index="threeItem.index">{{
                                    threeItem.title
                                }}</el-menu-item>
              </el-submenu>
              <el-menu-item v-else
                            :index="subItem.index"
                            :key="subItem.index">{{ subItem.title }}</el-menu-item>
            </template>
          </el-submenu>
        </template>
        <template v-else>
          <el-menu-item :index="item.index"
                        :key="item.index">
            <i :class="item.icon"></i>
            <span slot="title">{{ item.title }}</span>
          </el-menu-item>
        </template>
      </template>
    </el-menu>
  </div>
</template>

<script>
import bus from '../common/bus';
export default {
  data () {
    return {
      collapse: false,
      items: [
        {
          icon: 'el-icon-lx-home',
          index: 'dashboard',
          title: '系统首页'
        },
        {
          icon: 'el-icon-lx-cascades',
          index: 'table',
          title: '基础表格'
        },
        {
          icon: 'el-icon-lx-copy',
          index: 'tabs',
          title: 'tab选项卡'
        },
        {
          icon: 'el-icon-lx-calendar',
          index: '3',
          title: '表单相关',
          subs: [
            {
              index: 'form',
              title: '基本表单'
            },
            {
              index: '3-2',
              title: '三级菜单',
              subs: [
                {
                  index: 'editor',
                  title: '富文本编辑器'
                },
              ]
            },
            {
              index: 'upload',
              title: '文件上传'
            },
            {
              icon: 'el-icon-lx-redpacket_fill',
              index: '/goodsmanage',
              title: '商品管理'
            }
          ]
        },
        {
          icon: 'el-icon-lx-emoji',
          index: 'icon',
          title: '自定义图标'
        },
        {
          icon: 'el-icon-pie-chart',
          index: 'charts',
          title: 'schart图表'
        },
        {
          icon: 'el-icon-lx-global',
          index: 'i18n',
          title: '国际化功能'
        },
        {
          icon: 'el-icon-lx-redpacket_fill',
          index: '/donate',
          title: '支持作者'
        },
        {
          icon: 'el-icon-lx-cascades',
          index: '8',
          title: '汽车服务管理',
          subs: [
            // {
            //     index: '/serverType',
            //     title: '服务一级分类管理'
            // },
            // {
            //     index: '/serverTypeSecond',
            //     title: '服务二级分类管理'
            // },
            {
              index: '/server',
              title: '服务详情管理'
            },
            {
              index: '/serverShop',
              title: '提供服务的门店管理'
            }
          ]
        },
        {
          icon: 'el-icon-lx-cascades',
          index: '/comment',
          title: '评论管理'
        }, {
          icon: 'el-icon-lx-cascades',
          index: '/storeApproval',
          title: '门店审批'
        }, {
          icon: 'el-icon-lx-cascades',
          index: '/order',
          title: '订单管理'
        },
        {
          icon: 'el-icon-lx-cascades',
          index: '/complaints',
          title: '投诉管理'
        }, 
         {
          icon: 'el-icon-lx-cascades',
          index: '/orderRefund',
          title: '退款受理'
        }, {
          icon: 'el-icon-lx-cascades',
          index: '12',
          title: '电站管理',
          subs: [
            {
              index: '/powerStationApproval',
              title: '电站审批'
            },
            {
              index: '/eleApproval',
              title: '电桩审批'
            }
          ]
        }
      ]
    };
  },
  computed: {
    onRoutes () {
      return this.$route.path.replace('/', '');
    }
  },
  created () {
    // 通过 Event Bus 进行组件间通信，来折叠侧边栏
    bus.$on('collapse', (msg) => {
      this.collapse = msg;
      bus.$emit('collapse-content', msg);
    });
  }
};
</script>

<style scoped>
.sidebar {
    display: block;
    position: absolute;
    left: 0;
    top: 70px;
    bottom: 0;
    overflow-y: scroll;
}
.sidebar::-webkit-scrollbar {
    width: 0;
}
.sidebar-el-menu:not(.el-menu--collapse) {
    width: 250px;
}
.sidebar > ul {
    height: 100%;
}
</style>